GATE CY 2013 Question Paper (20-Jan-2013) (Shift 2)

A sparingly soluble electrolyte $M_{2}X$ ionizes as $M_{2}X\rightleftharpoons 2M^{+}+X^{2-}$
The solubility product ($K_{sp}$), molal solubility (S) and mean molal activity coefficient (${\gamma }_{\pm }$) are related by

For the first order consecutive reaction $P\to Q\to R$, under steady state approximation to [Q], the variations of [P], [Q] and [R] with timeare best represented by

At 273 K and 10 bar, the Langmuir adsorption of a gas on a solid surface gave the fraction of surface coverage as 0.01. The Langmuir adsorption isotherm constant is ________ bar${}^{-1}$. (Give the answer to the third decimal place)

Conversion of boron trifluoride to tetrafluoroborate accompanies

The correct statement with respect to the bonding of the ligands, $M{e}_{3}N$ and $M{e}_{3}P$ with the metal ions $B{e}^{2+}$ and $P{d}^{2+}$ is,